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27 Cards in this Set

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Technology
tools, materials, and processes that help solve human problems
Digital Electronics device
device that stores and processes bits electronically...with the ability to represent, process, transfer, store data as 1's and 0's
Byte (B)
a group of eight bits
File
a named collection of instructions of data stored
Data
items stored on a digital electronics device
Bit(b)
short for binary digit, represents data that can be set to one of two states, on or off.
Digitization
transforming stuff into 1's and 0's
Information
data organized in a manner it has value beyonnd value of data itself.
Microprocessor
also a chip or processor...combines electronic components on a single integrated circuit that processes bits
Secondary Storage
store data without need of electricity, take them where you go e.g hard drives, CD, USB flash drives e.t.c
Storage device
refers to device itself e.g drive or circuitry
Access time
time it takes to request data to be fulfilled by the device
Magnetic Storage
use the magnetic properties of iron oxide particles
Formatting
the coating of surface of magnetic storage device with a layer of particles organized into addressable regions.
Microdrives
tiny hard drives that can store GB of data on a disk e.g LifeDrive from PalmOne with 4 GB hard drive
Microdrives
tiny hard drives that can store GB of data on a disk e.g LifeDrive from PalmOne with 4 GB hard drive
Magnetic tape
storage medium for businesses to back up large quantities of data.e.g of sequential access
SAN
Storage area network links many storage devices on a network
SAN
Storage area network links many storage devices on a network
RAID
Redundant array of independent disks (second system of disks to maintain backup copy)
RAID
Redundant array of independent disks (second system of disks to maintain backup copy)
Optical storage
optical laser used to burn pits onn a reflecive disk surface e.g SDs, DVD's
Optical storage
optical laser used to burn pits onn a reflecive disk surface e.g SDs, DVD's
Optical vs. Magnetic
Optical lasts longer, and higer capacity
52x32x52 CD-RW & 16X DVD
Recrdable, RW, Read and read DVD at 16 times original rate
Flash memory card
chip non-volatile and keeps memory with no power...also called media cards
USB flash drives
Universal Serial Bus no mechanical part uses flash tech to store info